A person rides a motorbike past billboards reading 'Black Day' installed outside the Parliament building, in Islamabad, Pakistan, 26 October 2025. Pakistan observes Black Day on 27 October to protest the 1947 landing of Indian troops in Jammu and Kashmir, and to reaffirm solidarity with the people of Kashmir. EPA/SOHAIL SHAHZAD 
Some of them are in critical condition, he said.
"We are probing what kind of blast it was. It is not clear yet. We will be able to provide more details after we get a report from our forensic team," he said.
The blast occurred near the entrance of Islamabad district court, which is typically crowded with a large number of litigants.
Local media showed gory pictures of the site, with bloodied individuals lying near a police van, which Reuters was not able to verify independently.
(Reporting by Asif Shahzad; Editing by Andrew Heavens and Himani Sarkar)